hello

can you please help me with problem 7.1?

thank you

END IF END IF ENO := EN; 7.14 Test Problems Problem 7.1 (a) What three types of POU are defined by the standard? (b) Explain the difference between a function and a function block. (c) Write the declaration for a Boolean function named Ohoy that has 2 in-variables, A and B, both of the data type REAL. (d) Which text-string functions are defined in the standard? (e) Show examples of use of the standard functions CONCAT and REPLACE. ( What will be the result from the following function calls if they are executed in the same order as they are listed (all variables are of data type String: 1. MyString := INSERT("Tomorrow is today'. 'yesterday'. 11) 2. A:= LEN(MyString); 3. B := FIND(MyString, 'r'); 4. C:=LEFT(MyString, 4); 5. D:= RIGHT(MyString, 5); Problem 7.2 (a) Which function can be used to limit a numerical variable til values between, for instance, -200 and 200? (b) Suppose that you want to assign a variable called Input, of data type word, to one of the analog inputs %IW4, %IW5, or %IW6, depending on whether the value of a variable